Reasonable quotes for new-installation

[Daniel97]

I am trying to quote a job,
Small commercial kitchen/cafe/takeaway with a 3phase supply.
New 3 phase board, supplying 7 new circuits, all single phase.
1 ring with 16 double sockets.
5 radial circuits for larger appliances
1 lighting circuit
Most of it is being done in SWA
Close to 100m of cable all in
Some cable tray


usually I’m working for someone else so I don’t deal with purchasing and quoting.

What would ball park for this work and materials be I have done my math but want to compare

 

[westward10]

You are going to install a single ring final circuit for all the general socket outlets and a single lighting circuit?

 

[Daniel97]

You are going to install a single ring final circuit for all the general socket outlets and a single lighting circuit?

It’s one room, opens onto street seating serves through a window, they are having 2 lights.

 

[westward10]

It’s one room, opens onto street seating serves through a window, they are having 2 lights.

Okay but sixteen socket outlets on a single circuit is likely to be non compliant whereby the total expected earth leakage should not exceed 30% of the residual tripping current.

 

[loz2754]

Price the materials, add a markup.
Work out the labour costs. (This is the part that is easy to underestimate).
Add a bit for contingencies.

 

[Vortigern]

Most Ring Final Circuits must then not comply throughout the British Isles as 16 sockets is standard on an RFC pretty well universally @westward10 It does say in regs that any amount of sockets is acceptable on a RFC. Looking at recommended sockets at safety first org they even encourage the same amount. Am I missing something?

 

[DPG]

Most Ring Final Circuits must then not comply throughout the British Isles as 16 sockets is standard on an RFC pretty well universally @westward10 It does say in regs that any amount of sockets is acceptable on a RFC. Looking at recommended sockets at safety first org they even encourage the same amount. Am I missing something?

If 16 sockets are being used by equipment that has an amount of earth leakage then the recommended leakage figure for a single RCD could well be exceeded. Admittedly only a few of the sockets may be in use, but it seems sensible to me to split them into 2 circuits.